Eyeglass construction.



L. C.MAH||N. EYEGLASS COI\IS`I'RUGTI QI\I.v APPLicATloN FILED Nov. 24. 19m.

1,201 ,223. l Patented Oct. l0, 1916.

FFE -l LAUnENeiic; MARTIN, or rrtovinnircn, RHODE listenin.

` nirnsmifss coixsrnifd'rion.

yApplication led November 24, 1914.v Serial No. 873,674.

T (iiaiZZ whoom'z't may concern: f plane of the lenses and along the lline'O-O .Be it known that LLAURENCE C. MARTIN, of Fig'. 6. Fig. 6 is a side elevation of the a citizen of the United States, and residing lens clainp appearing in Fig. 5.

` members and in the relative proportioningillustrative of the various at' Sabin andfAborn streets, Providence, in Referring now to Fig. 2 of the drawings5 60 the county of Providence and State of RhodeA there'is shown at l a portion of; an eye- Island, have invented anew and Improved glass lens the edge of which is embraced by lyeglass Construction, of which the follow the lens clamp 2. lt may liefe be .noted ing specification is a full disclosure. f

that theterm' eyeglass is @sed broadly This invention relates' to eyeglass construction. 'ed to inoun'tjlenses upon the face, and that One of the objects thereof is to providel the term ffle'ns.' clamp isf also used-l in a' a simple and practical device whereby anv broad sensefjasfdenoting any device adapted eyeglass lens is securely connected'to anto be secured or tolsecure another member other member) of the glasses. to an eyeglasslens. The lens clamp 2 com 70 Another object is to provide a construcprises a strap 3 provided at each side with, tion of the above type in whichwhile the a 111,9: or wing; 4. The strap 3 is ofsuch parts are rigidly and reliably held yettheyv nature as to 'be' adapted to be bent to some are readily removed.

Other objects are to provide a device of aCtlyl-the curve of the lens to which it is 75 extent transversely ofy its length to iit ex-l the `above type of inexpensive construction secured. Rigidlyconnected with this strap and attractive appearance and the'portions is a hollow post 5 at the outer end of which of which may betq'uickly and conveniently is secured -a rectangular sleeveifor" 'box 6 assembled- ."-w' v-f i whichl receives the end of the 'b'ow-sn,ori1 i,9;ffy f Other objects willT be in partgobvious :from V8 byWhlChjihe lenses of the eyeglasses are 801 the annexed drawings-and inpartiindicated COlncCtdrfjJ-0gethfl). The @11d 0f the Spll in connection therewith by th following. Sf-ghelm'PQSllmlli by@ SCREW 9 -tapped analysis of this invention;A W1th1n-the- DOS .and ilylllf flush Wlththe 5 This invention accordingly consists inthe -f"011ter s\1rface gf theisleevef as at 10. if features oit' construction, combinationslof 'It 1s to b 'e understood `that the construcfvfsfa parts, and in the unique rentionscthc tron mim'edlatelv above descrlbed lsmerely possible embod'ij and disposition thereof; all as more conimlllfheinvention. pletely outlined herein. Recurring to.Fig. 1 of the drawings it To enable others skilled in the art vso 1s seen that the wings 4 are Awidest 4in so y fully to comprehend the underlying features the dlreCtlQIl 0f the length Of the Strap thereof that they may embody the same by 3 at h'Q'DQlIl {idlcent the Strap anilla-1" the numerous modifications in structure and `IOW 111 a direction toward the body ofthe relation contemplated by this invention, lens. lt will also bes'eenA that these wings,

drawings depicting; a preferred form have HS indicated at 11 and l2 taper substan- 95 been annexed as a partof this disclosure, tially to an edge in directionsaway fromy and in such drawings, like characters of ref- @Hd lengthwise: O f the Strap 3f Thistpel erence denote. 'corresponding` parts through- 111g 0f the WllgS il, or reinforcement of out all the views of whichztheir lower portions, 1s anumpcrtantfvfea- Figure l is a perspective view of a lens ture and is best. indicated insidie; 3;p,t.the 10o.

clamp, one portion being cut away in order drawings the addtifma 'mtiflilng em' to show the constructioninore clearly. Fig'. PhlSZed in vthis SQCOIlal VeWbfYdOtS aS.. i i

2 -is a sectional elevation through a portion at 13. The Wings 4 are preferably lirmly;

Y of a lens clamp and associated parts,.the connected one with another by the cross-pin".

section being taken vsubstantially in the 14 whichis 'soldered to or integral with 105 plane of the lens and alongthe line (A- A these parts. This cross-pin as shown in Fig. of Fig'. 3. Fig. 3 is a sectionaviw taken .2 0f th? dl'WlngS, fits Within a recess 1 5 i. along the line ,B--B of Fig. 2. Fig. 4 is a formed 1n the lens 1 and the entire device 1s ;A g. side elevationof the device shown in Fig.' rigldly held in position by the usejoi a suit-.fr 1. Fig'. 5 is .a sectional elevation of a differv ableJ readily/'fusible ce1nent," a lportion@ of .i1c ent form of lens clamp and associated parts,' Whlch 1S intimated ali-16. the section being taken substantially in the The use and action of this device maybe throughout toc'omprehend any device adapt- 65` outlined asfollowsz-The clamp is secured in position, as above noted, preferably by a fusible cement which immediately hardens and will hold the parts together with extreme tenacity. If, however, a line of cleavage should develop in the cement, the entire lens would soon become loose. Due, however, to the reinforcement of the wings 4 at 13 the chance of outward bendingof these parts is reduced to a minimum. It will also be noted that this result is accomplished without rendering the device unsightly or wasting metal. The pin 14, moreover, securely holds the inner surfaces of the wings 4 at a fixed distance apart and aids materially in rendering the joint secure, although either of these features are of independent value. lf it is desired to remove the clamp, as in the. case of a broken lens`r the parts are warmed and at a inoderate temperature they readily fall apart, permitting the substitution of a new lens.

Among the advantages of rforming the lugs as above described, it may be noted that there is gained a line of junction between the side lugs and the strap which is relatively short in a direction circumferential of the lens as compared withcertain forms of c emented lens clamp now in general use in which the lugs are coeXtensive with the strap, and thus the present clamp may be more readily adjusted to embrace and iit properly different thicknesses of lenses Without a tendency to buckle the metal out of its plane or inc-line the lugs toward one another. In Figs. 5 and 6 of the drawings, there is shown a dierent form of clam-p which, nevertheless, embodies many of the above features and advantages. In this forni, the lens 17 is provided with a pair of recesses 18. The lens clamp 19 comprises a strap portion 20 provided at eachjend with a pair of wings 21 which are reinforced at 22, as indicated in Fig. 6 of the drawings. These wings taper down at their connecting point substantially to the outer surface of the strap 20, indicated at 28, and also narrow in thickness at this point, as indicated at 24. By this construction the clamp may be bent in a direction transverse of its length substantially aty its center in order to conform to and fit closely the edge of the lens. This form of clamp is provided with a pair of flat lugs 25 which are rigidly seured to or integral with .both of the adjacent wings 21 and with the strap 20, thus rigidly connecting all of these members together. These lugs tit within the recesses 18, above referred to, and the entire device is cemented in position as described in connection with the construction first set forth. It will be noted that the fiat lugs 25 formed 4rigid with the strap 20 and the side lugs constitute in effect stitfening webs on the inner surfaces of the side lugs, and, if Idesired, instead of these inner webs or the reinforcing shown, sti'ening webs or beads might be used on the outer surfaces of the side lugs or wings, as at 26, and many of the advantages of this invention attained. lt may also be noted that certain of the advantages ofthis invention may be attained by stamping the side wings out of sheet metal into such form that, although the metal itself is of -substantially uniform thickness, nevertheless the metal with'the cement filling is of tapering thickness and the outer surfaces converge in a direction away from the strap and preferably in a direction parallel to the. strap.

It will thus beseen that there is provided a device in which the several objects of this invention are achieved and which is well adapted to meet the hardest conditions of practical use.

As many changes might be made in the above construction, and asmany apparently different embodiments might be made of this invention without departing from the scope thereof, it is intended that all features herein described or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

Having thus revealed this invention, l claim as new and desire to secure the following 2combinations of elements, or equivalents thereof, by Letters Patent of the United States 1. In eyeglass construction, in combination,a lens and a lens clamp comprising a strap portion and a pair of side lugs einbracing said lens and cemented thereto, each of said lugs being thickened adjacent its junction with the strap and tapering in thickness in a direction away from the strap.

2. In eyeglass construction, in coni-bination, a lens and a lens clamp comprising a strap portion and a pair of side lugs having substantially parallel inner surfaces embrac-` ing said lens and cemented thereto, each of said lugs being thickened adjacent its juneu tion with the strap and tapering substann tially to an edge in a direction away from the strap.

3. In eyeglass construction, in combination, a lens and a lens clamp comprising a strap portion and a pair of side -lugs embracing said lens and cemented thereto, each of said side lugs being thickened adjacent itsjunction with the strap and tapering in thickness in a direction away from the strap and terminating short of the ends of the strap in a'direction circumferential of the lens.

4. ln eyeglass construction, in combination, a lens and a lens clamp comprising a strap portion and a pair of side lugs embracing said lens and cemented thereto, each of said lugs being thickened adjacent its junction with the strap and tapering in thickness by a rounded outer surface extending substantially to the lens in directions both circumferential and radial thereof.

5. Infeyeglass construction, in combination, a lens and a lens clamp comprising al strap portion and a pair of side lugs having substantially parallel inner surfaces embracing said lens and cemented thereto, each of said lugs being thickened adjacent its junc-l tion with the strap and tapering' substantially to an edge in a direction away from the strap, and each of said lugs terminating short of the ends of the strap in a direction circumferential of the lens. y

6. As a new article of manufacture, a lens mounting for eyeglass construction, comprising a strap portion and a pair 'of unper forated side lugs having substantially parallel inner surfaces adapted to embrace and be cemented to the lens, each of said lugs being ofmaterially increased thickness vadj acent its junction with the strap and tapering in thickness throughout its length.

7. As a new article of manufacture, a lens i mounting for eyeglass construction, com prising a strap portion and a pair of side lugs adapted to embrace and be cemented to thel lens, each ofl said lugs being of materially increased thickness adjacent its 'junction with the strap and of gradually diminishingv thickness in a direction away from the' strap to its outer edge portion and each of said lugs -terminating short` of the ends of the strap ferential of the lens.

8. A spectacle or eyeglass mounting comf prising a lens ear', having a thick base end I and an outer face tapered from the base end toward the free end and toward the longitudinal edges, for the purpose set forth.,

In witness whereof, I hereunto subscribe my name, as attested by thev two subscribing Witnesses. f

Witnesss: v

' M.'J. COOPER, R. S. BLAIR.'

in a direction circum- LAURENCE c. MARTIN. 'v 

